Apple and Gorilla Glass will be parting ways with the release of their iPhone 6, as the Cupertino-based tech giant will be switching to sapphire screen-coating for their next line of smartphones.

Sapphire coating has been used in high-end watches for a while due to its high-durability and scratch-resistance.

Currently, sapphire coating has only been used on iPhone camera lenses and the iPhone 5s fingerprint sensor. The upcoming iWatch will supposedly enjoy sapphire coating as well.

And the company behind Apple's sapphire coating, GT Advanced, stands to make a pretty penny from their deal. They are looking at $500-$700 Million for the first six months, since coating a display with sapphire costs 3-4 times more than coating it with Gorilla Glass (which only costs $3 per screen).

Although the specific number of displays GT Advanced will be producing isn't known, we do know they haven't produced enough to make a May shipment date of the iPhone 6. Analysts believe that, based on GT Advanced's shipments, that the iPhone 6 will be ready for sale come September 2014.

Anyone excited to see how the sapphire displays will hold up on the iPhone 6?